25
A14225A_2
6.3.3.1. Furnace Airflow
Selects the airflow of the furnace when heating. EFFICIENCY is the airflow used to meet
specified ratings, COMFORT is a decreased airflow used to increase the output air temperature
and provide increased comfort.
For the Low heat rise option, set to ON if the system contains a bypass humidifier. The ON
setting will increase the furnace low heat airflow.
After the selections are made, touch SAVE.
• Furnace Air Flow: Comfort or Efficiency. Default = Comfort
• Low Heat Rise: On or Off. Default = Off
6.3.3.2. AC/HP Airflow
The QUIET airflow means the minimum cooling airflow that the system can safely run
(typically 300 CFM/ton). Use this setting if duct noise is a severe problem.
NOTE: Duct sweating in high humidity environments could become an issue at low airflows.
The COMFORT airflow means airflow is varied depending on humidity and temperature
demand settings. This selection enables the full dehumidify and comfort capabilities of the
system. The EFF325 airflow is a fixed airflow used to achieve specified ratings – no
dehumidification airflow reduction is performed. This is nominally 325 CFM/ton, but will vary
if a 2-stage outdoor unit is used. The EFF350 airflow is a fixed airflow used to achieve
specified ratings – no dehumidification airflow reduction is performed. This is nominally 350
CFM/ton, but will vary if a 2-stage outdoor unit is used. The MAX airflow is a fixed 400
CFM/ton. No dehumidification airflow reduction is performed.
The dehumidify airflow, when set to NORMAL, the airflow is allowed to adjust to a minimum
to satisfy the dehumidification call. When set to HIGH, the minimum airflow during the
dehumidify mode is increased to reduce duct and register sweating. Also the airflow increases
minimum airflow during normal cooling operation to help reduce duct sweating.
After the selections are made, touch SAVE.
• Cool: Quiet, Comfort, EFF325, EFF350, or Max. Default = Comfort
• HP Heat: Comfort, EFF325, EFF350, or Max. Default = Comfort
• Dehumidify: Normal or High. Default = Normal
To Next Page
Loading...
